cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A188360 Number of arrangements of 5 numbers x(i) in -n..n with the sum of x(i)*x(i+1) equal to zero.

Table of values

n a(n)
1 91
2 565
3 1775
4 4201
5 8051
6 14477
7 22583
8 34625
9 49755
10 69749
11 91855
12 123945
13 155779
14 197533
15 247399
16 304785
17 361755
18 440021
19 512415
20 611097
21 715123
22 826765
23 936711
24 1090865
25 1233531
26 1393541
27 1568623
28 1774089
29 1955795
30 2212029
31 2421127
32 2686881

List of values

[91, 565, 1775, 4201, 8051, 14477, 22583, 34625, 49755, 69749, 91855, 123945, 155779, 197533, 247399, 304785, 361755, 440021, 512415, 611097, 715123, 826765, 936711, 1090865, 1233531, 1393541, 1568623, 1774089, 1955795, 2212029, 2421127, 2686881]